Quest: Why I did a Davos selfie challenge

Selfie is the word du jour and became a cause celebre during Nelson Mandela's funeral

Quest decided to embark on a selfie challenge in Davos, at the World Economic Forum

Here is the result -- and a guest appearance from executive producer Penny Manis

Editor's note:Richard Quest is CNN's international business correspondent and presenter of Quest Means Business; the definitive word on how we earn and spend our money. Check out his selfie challenge below and follow him on Twitter. CNN executive producer Penny Manis also embarked on a selfie challenge, of sorts. See hers with U.S. Secretary of State John Kerry and follow her on Twitter.